Diesel Additive for 6.7

Discussion in 'General Super Duty Discussion' started by Steve Edwards, Aug 22, 2022.

Car Parts
  1. Steve Edwards

    Steve Edwards SDD Junior Member

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    What does everyone use for keeping your engine/fuel system/gas mileage in their 6.7 running top notch?
    I have been using Hot Shots Secrets Everyday Diesel Treatment, and Hot Shots Secret Diesel Oil additive to the oil.
     
    Last edited: Aug 22, 2022
  2. 12F350

    12F350 SDD Junior Member

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    Where in the manual do you find advice for the additives you’re using? I don’t think it exists. To the contrary, I think Ford and other manufacturers for that matter recommends against using additives. I’m on my second 6.7. No additives- no problems.
     

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